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17090 Surgery

A 63-year-old woman fell while crossing the street after her Thursday afternoon bridge game. Attempts at resuscitation for cardiac arrest by the emergency medical service (EMS) team were unsuccessful. The woman had previously been diagnosed as having aortic stenosis and left ventricular hypertrophy. In addition to these factors, which of the following predisposes to sudden cardiac death?

ASplit first heart sound
BHypokalemia
CSoft murmur at left of sternum that varies with inspiration
DFailure of the central venous pressure (CVP) to rise more than 1 cm H2O with 30-second pressure on the liver (hepato-jugular reflux)
Surgery
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